Solution Guide for Migrating Oracle on UNIX to SQL Server - Willy .Net

<strong>Solution</strong> <strong>Guide</strong> <strong>for</strong> <strong>Migrating</strong> <strong>Oracle</strong> on UNIX to SQL Server on Windows 65Set Up the Development and Test EnvironmentsThe final tasks <strong>for</strong> the Planning Phase are setting up the development and testenvironments. Completing these tasks allow <strong>for</strong> a smooth transition into the DevelopmentPhase.In many ways, the development and test environments are similar. Both are modeled onthe solution environment, and both are used to refine the solution. There are alsodifferences between the functions of these two environments.The development environment is used to develop the migration solution <strong>for</strong> the database,client application, and server applications. In addition, the environment may go throughchanges as the solution is developed.By contrast, the test environment is more strictly controlled to ensure that it emulates theproduction environment. The test environment is used to complete all necessary testing<strong>for</strong> the database and application. The test environment must be as similar as possible tothe production environment so that stress and scalability tests will have a measure ofaccuracy.Often in migration projects, the development environment is used <strong>for</strong> testing once theDeveloping Phase has ended. In most situations, the test environment requires a higherlevel of per<strong>for</strong>mance than the development environment, and additional hardware willneed to be added.If you are reusing equipment, it is best to reload all operating systems, applications, anddata. This ensures that testing results will not be skewed by a system setting or error leftfrom the development environment.The test environment also has different requirements than the development environment.For instance, testing tools should be installed <strong>for</strong> tasks such as recording per<strong>for</strong>mancefactors, or to increase the load during stress testing.The tools required <strong>for</strong> development and testing are:● Database modeling tools <strong>for</strong> reverse engineering existing databases andgenerating data definition statements <strong>for</strong> the new environment. The more popularmodeling tools are AllFusion ERwin from Computer Associates and ER/Studiofrom Embarcadero.● Software development tools such Visual Studio .NET or Visual Basic .NET, Perl,Python, PHP, and Java● Software management tools <strong>for</strong> source control and bug tracking — Visual SourceSafe and Concurrent Version Systems (CVS) are the popular ones <strong>for</strong> sourcecontrol. PVCS from Merant and ClearQuest from Rational can be used <strong>for</strong> bugtracking.● An application debugger (if one is not bundled with the application developmenttool). Most applications come with their own built-in debuggers.● Software <strong>for</strong> administering <strong>Oracle</strong> and SQL Server. Both <strong>Oracle</strong> and SQL Serveroffer Enterprise Manager, which contains a comprehensive set of tools <strong>for</strong> alladministrative tasks. There are several third-party tools available, such as Toadand SQL Navigator from Quest, PL/SQL Developer from Allround Automations,Unicenter SQL-Station from Computer Associates, and Rapid SQL fromEmbarcedero.● Database and data migration tools. Tools that are aimed specifically at <strong>Oracle</strong> toSQL Sever migration are available from Microsoft.● UNIX interoperability tools such as SFU, FreeTDS, and so on.